Use the following key to determine the best answer.
-(1) Alveolar pressure during inspiration
(2) Alveolar pressure during expiration
A)First item is greater than the second item.
B)First item is less than the second item.
C)First item is equal or nearly equal to the second item.

Question

Quizplus · Accepted Answer

During inspiration, the alveolar pressure must be less than atmospheric pressure to allow air to flow into the lungs, making it less than the alveolar pressure during expiration, where the pressure must be greater than atmospheric pressure to expel air.

Use the Following Key to Determine the Best Answer